Vulnerability · Published Mar 31, 2026 · Assigned by CPANSec

CVE-2024-14030Sereal::Decoder versions from 4.000 through 4.009_002 for Perl embeds a vulnerable version of the Zstandard library

High 8.1

In plain English

A high-severity security flaw in Sereal::Decoder from YVES. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 30% of all known vulnerabilities).

Severity (CVSS 3.1)8.1High

Exploit odds (30 days)0.4%top 69.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Sereal::Decoder versions from 4.000 through 4.009_002 for Perl embeds a vulnerable version of the Zstandard library. Sereal::Decoder embeds a version of the Zstandard (zstd) library that is vulnerable to CVE-2019-11922. This is a race condition in the one-pass compression functions of Zstandard prior to version 1.3.8 could allow an attacker to write bytes out of bounds if an output buffer smaller than the recommended size was used.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Ubuntu:22.04:LTS	libsereal-encoder-perl	no fix listed	UBUNTU-CVE-2024-14030
Ubuntu:24.04:LTS	libsereal-encoder-perl	no fix listed	UBUNTU-CVE-2024-14030
Ubuntu:25.10	libsereal-encoder-perl	no fix listed	UBUNTU-CVE-2024-14030

Affected products (as reported)

Vendor	Product	Versions
YVES	Sereal::Decoder	4.000 – through 4.009_002

Weakness: CWE-1395 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References

https://github.com/advisories/GHSA-w77f-wv46-4vcx vendor-advisory
https://www.cve.org/CVERecord?id=CVE-2019-11922 vendor-advisory
https://metacpan.org/release/YVES/Sereal-Decoder-4.010/changes release-notes